Supplied
One pin vise
Bergeon · Hairspring pin vise
Bergeon 4072 Hairspring-Holding Pin Vise
A 105 mm stainless-steel pin vise intended specifically for holding hairsprings.
Confirm the actual opening and contact requirement for the hairspring.
$69.95Nov 6, 26, 08:12 PM · New York
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- Model 4072
- Intended role Holding hairsprings
- Material Stainless steel
The physical equipment
Construction & package details
What this choice changes
Choose component-specific holding rather than a whole-assembly support
The Bergeon 4072 is described specifically for holding hairsprings. That contact role distinguishes it from the 7995 balance-cock support, which positions the larger balance-cock/spring assembly, and from a general-purpose slide-locking pin vise.
The tool is listed as stainless steel with a length of 105 mm. One pin vise is supplied. The actual opening, grip force and supported hairspring range are not given, so confirm the contact required for the particular part before buying it for a service setup.
Compare the 7995 when you need to position the whole balance-cock and spring assembly, and a general pin vise when you need a chuck with a stated opening. These address different holding contacts: choose the support for the actual component and stage of work.
Specifications & supplied details
| Detail | Listed specification |
|---|---|
| Model | 4072 |
| Intended role | Holding hairsprings |
| Material | Stainless steel |
| Tool length | 105 mm |
| Supplied | One pin vise |
Check the working requirements
Spring contact
Confirm the actual opening and contact requirement for the hairspring.
Assembly support
Select a support separately if the whole balance-cock assembly must be positioned.
Limits to keep with the choice
- Actual opening, grip force and universal hairspring fit are not specified.
Questions before you choose
How does it differ from the 7995 support?
The 4072 holds the hairspring itself. The 7995 is described for positioning the balance-cock with its spring during corrections.
How do I check whether it will hold the hairspring I am working on?
The seller identifies hairspring holding as the task, but does not give the actual opening, grip force or a supported spring-size range. Confirm the required contact for the particular part before choosing it.
When should I compare a general pin vise instead?
Compare one when the job calls for a general chuck and a stated opening: the Horotec MSA02.030 lists a 0–1.5 mm slide-locking chuck. The 4072 is specifically offered for holding hairsprings, without that general opening specification.
Guides for this choice
Other equipment to consider
Selected listing descriptions, specifications and source images were compared for this reference. No hands-on trial is claimed. Product identifier: B07FWC1DJC.